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DC/AC Inverters
Premium OVX-6400 SERIES DC/AC Inverter
The Premium OVX-6400 is a 6.4 kVA three-phase DC/AC inverter designed for rail and transportation projects that require stable, low-distortion AC power from high-voltage DC catenary supplies. Operating across a wide 400 – 900 VDC input range, the inverter is engineered to handle the demanding electrical conditions found in rolling stock environments, including transient over-voltage events defined under EN50124-2. This makes it well suited for applications involving traction systems, onboard auxiliary loads and specialised rail subsystems that depend on reliable AC output.
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Features
- High-voltage catenary input range for rail installations - Engineered to operate reliably from 400 to 900 VDC catenary supplies, the OVX-6400 is designed to withstand the challenging electrical environments found in rolling stock. The 7701Z variant adds protection for 2800 V surge conditions in line with EN50124-2, supporting use across diverse traction networks.
- Stable three-phase output with low harmonic distortion - The inverter delivers a regulated 400 VAC three-phase sine-wave output with THD below 2 percent, ensuring smooth operation of motors, compressors and other sensitive onboard equipment. Adjustable voltage and frequency settings give integrators full control when matching load requirements.
- Comprehensive isolation and safety architecture - With 5200 VRMS input-to-output isolation and compliance to EN50124-1 insulation coordination requirements, the unit supports safe operation in high-energy rail environments. Additional protection includes under-voltage lockout, over-voltage shutdown, thermal safeguards and current-limited overload handling.
- Advanced remote monitoring and control - RS-232 and CAN bus connectivity allow engineering teams to configure parameters, monitor input/output conditions and adjust operating modes during commissioning and routine service. Functions such as rotation direction, V/F curves, frequency set points and ramp profiles can be fine-tuned to meet application demands.
- Robust mechanical design for onboard environments - Tested to EN61373 Category 1 Class B, the OVX-6400 withstands shock and vibration typical of rail vehicle installations. The compact 87 × 430 × 450 mm enclosure with controlled internal airflow enables efficient thermal performance while fitting neatly into constrained electrical cabinets.
- Long-life construction with low maintenance in mind - With a 100,000-hour MTBF at 40°C and a 20-year design life, the inverter supports long-term operation in continuous-duty transport applications. Internal fan assemblies are designed for service replacement at the 10-year mark, helping operators extend asset life while maintaining performance.
Specifications
Selection Table
Technical Illustrations
Downloads
| INPUT | |
|---|---|
| Nominal DC input voltage | 600 / 750V |
| Minimum DC input voltage | 400V continuous |
| Maximum DC input voltage | 900V continuous |
| Maximum Input overvoltage | Only for the model OVX-6400-7701Z: • EN50163:2006 (Supply voltage of traction systems) • 2800V according to EN50124-2=2017 4.2.2 and Annex A |
| Maximum input ripple | ±5% VPP from 300 to 360Hz |
| Inrush current | 15A |
| OUTPUT | |
|---|---|
| Output type | AC 3ph sine wave |
| Output Voltage | 400V |
| Voltage tolerance | ±5% |
| Output voltage range | 20…100% of VOUT (adjust via remote control) |
| Output frequency | 50 / 60Hz via DIP-switch, 5…75Hz via RS-232 |
| Maximum continuous current (IRMS) | 9.24A |
| Maximum peak current 5s (IRMS) | 11.5A |
| Continuous active / apparent power | 6000W / 6400VA |
| Peak active / apparent power 5s | 8000W / 8000VA |
| Load regulation | < 4.5% |
| Line regulation | < 2% |
| Output wave distortion THD | < 2% (average of 16 samples) |
| Output HF ripple | < 2.5% |
| ENVIRONMENTAL | |
|---|---|
| Storage temperature | -25 … 80°C |
| Operating ambient temperature: Full load 62.5% load |
-25 … 55°C, 70ºC 10 min (SU3 class, according to EN61287-1) -25 … 70°C |
| Relative humidity without condensation | 5 … 95% |
| Maximum Altitude | 2000m at full load |
| Cooling | Internal forced air controlled |
| Environmental regulations | RoHS & Reach according to directive 2011/65/EU |
| EMC | |
|---|---|
| Immunity according | EN61000-6-2, EN50121-3-2 |
| Emissions according | EN61000-6-4, EN50121-3-2 |
| SAFETY | |
|---|---|
| Safety according to | EN50124-1 Railway app. (Insulation coordination) |
| Dielectric strength: Input-Output | 5200VRMS 50Hz 1min. |
| Dielectric strength: Input-Earth | 3400VRMS 50Hz 1min. |
| Dielectric strength: Output-Earth | 2300VRMS 50Hz 1min. |
| Pollution degree | PD2 |
| Overvoltage category | OV3 |
| Fire and smoke | EN45545-2 |
| RELIABILITY | |
|---|---|
| MTBF | 100.000h @40ºC according to SN29500 |
| Shock and Vibrations according to | EN61373:2011 Category 1 class B body mounted |
| Life cycle | 20 years (fan maintenance after 10 years is required) |
| MECHANICAL | |
|---|---|
| Dimensions (H x W x D mm) | 87 x 430 x 450 |
| Weight | < 12 kg |
| Protection degree | IP20 |
| PROTECTIONS | |
|---|---|
| Against reverse input voltage | Series diode at the input |
| Against input under-voltage | Under-voltage lock-out |
| Against input over-voltage | Over-voltage lock-out |
| Against input over-current | Input fuse |
| Against output overloads and short-circuits | Current and I²T limited (see overload protection curve) |
| Against over-temperature | Shutdown with auto-recovery |
| CONTROL | |
|---|---|
| Output OK LED | Green |
| Input OK LED | Green |
| Alarm LED | Red |
| Input alarm | Open when alarm. Maximum rating: 0.16A at 160VDC |
| Output alarm | Open when alarm. Maximum rating: 0.16A at 160VDC |
| Remote OFF input | Off applying 15…143 VDC, Impedance >35kΩ |
| Configurable input (reverse or mid-power) | ON: applying 15…143 VDC, Impedance >35kΩ |
| MODEL SELECTION | ||||
|---|---|---|---|---|
| Input Voltage | Transient Input Overvoltage | Output Voltage | Output Power | |
| OVX-6400-7701 | 400 … 900 Vdc | None | 400V three phase | 6kW 6.4kVA 8kWPK |
| OVX-6400-7701Z | 400 … 900 Vdc | 2800V acc. EN50163 | 400V three phase | 6kW 6.4kVA 8kWPK |
| INPUT | |
|---|---|
| Nominal DC input voltage | 600 / 750V |
| Minimum DC input voltage | 400V continuous |
| Maximum DC input voltage | 900V continuous |
| Maximum Input overvoltage | Only for the model OVX-6400-7701Z: • EN50163:2006 (Supply voltage of traction systems) • 2800V according to EN50124-2=2017 4.2.2 and Annex A |
| Maximum input ripple | ±5% VPP from 300 to 360Hz |
| Inrush current | 15A |
| OUTPUT | |
|---|---|
| Output type | AC 3ph sine wave |
| Output Voltage | 400V |
| Voltage tolerance | ±5% |
| Output voltage range | 20…100% of VOUT (adjust via remote control) |
| Output frequency | 50 / 60Hz via DIP-switch, 5…75Hz via RS-232 |
| Maximum continuous current (IRMS) | 9.24A |
| Maximum peak current 5s (IRMS) | 11.5A |
| Continuous active / apparent power | 6000W / 6400VA |
| Peak active / apparent power 5s | 8000W / 8000VA |
| Load regulation | < 4.5% |
| Line regulation | < 2% |
| Output wave distortion THD | < 2% (average of 16 samples) |
| Output HF ripple | < 2.5% |
| ENVIRONMENTAL | |
|---|---|
| Storage temperature | -25 … 80°C |
| Operating ambient temperature: Full load 62.5% load |
-25 … 55°C, 70ºC 10 min (SU3 class, according to EN61287-1) -25 … 70°C |
| Relative humidity without condensation | 5 … 95% |
| Maximum Altitude | 2000m at full load |
| Cooling | Internal forced air controlled |
| Environmental regulations | RoHS & Reach according to directive 2011/65/EU |
| EMC | |
|---|---|
| Immunity according | EN61000-6-2, EN50121-3-2 |
| Emissions according | EN61000-6-4, EN50121-3-2 |
| SAFETY | |
|---|---|
| Safety according to | EN50124-1 Railway app. (Insulation coordination) |
| Dielectric strength: Input-Output | 5200VRMS 50Hz 1min. |
| Dielectric strength: Input-Earth | 3400VRMS 50Hz 1min. |
| Dielectric strength: Output-Earth | 2300VRMS 50Hz 1min. |
| Pollution degree | PD2 |
| Overvoltage category | OV3 |
| Fire and smoke | EN45545-2 |
| RELIABILITY | |
|---|---|
| MTBF | 100.000h @40ºC according to SN29500 |
| Shock and Vibrations according to | EN61373:2011 Category 1 class B body mounted |
| Life cycle | 20 years (fan maintenance after 10 years is required) |
| MECHANICAL | |
|---|---|
| Dimensions (H x W x D mm) | 87 x 430 x 450 |
| Weight | < 12 kg |
| Protection degree | IP20 |
| PROTECTIONS | |
|---|---|
| Against reverse input voltage | Series diode at the input |
| Against input under-voltage | Under-voltage lock-out |
| Against input over-voltage | Over-voltage lock-out |
| Against input over-current | Input fuse |
| Against output overloads and short-circuits | Current and I²T limited (see overload protection curve) |
| Against over-temperature | Shutdown with auto-recovery |
| CONTROL | |
|---|---|
| Output OK LED | Green |
| Input OK LED | Green |
| Alarm LED | Red |
| Input alarm | Open when alarm. Maximum rating: 0.16A at 160VDC |
| Output alarm | Open when alarm. Maximum rating: 0.16A at 160VDC |
| Remote OFF input | Off applying 15…143 VDC, Impedance >35kΩ |
| Configurable input (reverse or mid-power) | ON: applying 15…143 VDC, Impedance >35kΩ |
| MODEL SELECTION | ||||
|---|---|---|---|---|
| Input Voltage | Transient Input Overvoltage | Output Voltage | Output Power | |
| OVX-6400-7701 | 400 … 900 Vdc | None | 400V three phase | 6kW 6.4kVA 8kWPK |
| OVX-6400-7701Z | 400 … 900 Vdc | 2800V acc. EN50163 | 400V three phase | 6kW 6.4kVA 8kWPK |
Find the Right Model
| Model Number | Input Voltage (Vdc) | Output Voltage (Vac) | Output Power (Va / kVA) | ||
|---|---|---|---|---|---|
|
ODX-6400-7701 | 600 / 750Vdc: Min 400Vdc continuous - 900Vdc continuous | 400Vac, 50Hz / 60Hz | 6,400Va / 6.4kVA | |
|
|
ODX-6400-7701Z | 600 / 750Vdc: Min 400Vdc continuous - 900Vdc continuous | 400Vac, 50Hz / 60Hz | 6,400 Va / 6.4kVA |
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